A. Saliva
B. Tears
C. Blood
D. Insulin
🧠 Explanation:
The pancreas secretes insulin, regulating blood sugar. For biology students, this highlights human physiology, making it a key topic for studying endocrinology, anatomy, and medical science. Insulin controls glucose. Understanding this ensures knowledge of bodily functions. It’s essential for analyzing biology, medicine, and health sciences. Studying insulin secretion offers insights into how organs regulate health, crucial for biology, medical studies, and physiology.
